One-Parent Families in Contemporary Cambodia

Nonmarital births and divorce are rare in Cambodia. Because of dramatic levels of adult mortality reached during the late 1970s, however, growing up with a single parent is not rare. Using nationally representative, cross-sectional data, we estimate that about 12% of children under age 18 co-reside with only one of their biological parents. Using longitudinal data representative of the Mekong River Valley, we found this proportion to be declining. Nearly half of these children live in nuclear families (single parent with or without a stepparent), even though they live in multigenerational families more frequently than children who live with both their parents, especially when young and not living with their mother. Finally, we consider differences in socioeconomic conditions and child educational outcomes by number of co-residing parents.     

Equivalence Scales Reconsidered

The paper proposes a new and normative approach for adjusting households’ incomes in order to account for the heterogeneity of needs across income recipients when measuring inequality and welfare. We derive the implications for the structure of the adjustment method of two conditions concerned with the way the ranking of situations is modified by a change in the reference household type and by more equally distributed living standards across households. Our results suggest that concern for greater equality in living standards conflicts with the basic welfarist principle of symmetrical treatment of individuals that is at the core of the standard equivalence scale approach.     

How migration information campaigns shape local perceptions and discourses of migration in Harar city,Ethiopia

Migration-information campaigns informing potential migrants about the risks of the journey and the harsh life conditions in the destination countries have emerged as prominent tools of migration management in the last decades. Despite their growing importance, little is known about their local implementation in countries of transit and origin as well as their influence on potential migrants' perceptions and experiences. The central objective of this paper is to understand how migration-information campaigns are implemented on a local scale and how they shape the perception and discourses of migration in the region. We pursue a multi-scalar analysis of international migration management policies and their outcomes in a specific place and link them with local migration aspirations. The paper is based on qualitative empirical research carried out in Harar, a medium-sized city in the Harari regional state of Ethiopia. Drawing on interviews with government officials, NGOs, city dwellers, and return migrants, as well as the analysis of policy documents and scientific literature, we show how the local implementation of migration-information campaigns shapes the local perceptions and discourses on migration within which migration aspirations are embedded. We found that information campaigns did not take into account the complexity and multifaceted nature of local socioeconomic and political conditions which reflects the discrepancy between policy discourses at large and people's perceptions.     

Strategic Experimentation

This paper extends the classic two-armed bandit problem to a many-agent setting in which N players each face the same experimentation problem. The main change from the single-agent problem is that an agent can now learn from the current experimentation of other agents. Information is therefore a public good, and a free-rider problem in experimentation naturally arises. More interestingly, the prospect of future experimentation by others encourages agents to increase current experimentation, in order to bring forward the time at which the extra information generated by such experimentation becomes available. The paper provides an analysis of the set of stationary Markov equilibria in terms of the free-rider effect and the encouragement effect.     

A NOTE ON OPTIMAL PORTFOLIO SELECTION UNDER STABLE PARETIAN DISTRIBUTIONS*

Elton, Gruber, and Padberg's [2] [3] ranking procedure and Kwan's [6] nonranking procedure for optimal portfolio selection lead to the same solution. This is because of a particular functional property of the cutoff rate for security performance. In this note, the robustness of that functional property is demonstrated the normality of security returns assumed in the above studies is relaxed to encompass the general family of stable Paretian distributions. The proof here is an important step toward portfolio analysis using some multiindex models when securities cannot be ranked.     

LEARNING ABOUT EDUCATION

Limited human capital investment is a common characteristic of low‐income countries despite the fact that estimated returns to educational investment in low‐income countries are generally higher than those in high‐income countries. Empirical evidence suggests that income and credit constraints can only account for a part of this underinvestment. Recent experimental evidence shows that families' misperceptions about the returns to education play a role in their low‐investment levels. This paper builds a heterogeneous‐agent model of human capital and growth that incorporates an adaptive learning mechanism to capture the way agents form perceptions about returns to education. We find natural conditions guaranteeing existence of stable equilibria. Along transition paths, agents' misperceptions about returns to education depress realized returns, which serves to reenforce and perpetuate low human‐capital investment. If human capital investments have both private and public returns, we find multiple stable equilibria, including those which are characterized by low investment and low returns. (JEL D83, O10, I25)     

Development and Validation of the Post-Dissolution Relational Communication Index

Relational dissolution is a distressing life event. Dissolution is further complicated when communication between ex-partners is inefficient, unpredictable, and strained. This examination uncovers the aspects of postdissolutional communication in a 2-part study. In Study 1, 271 participants experiencing a breakup completed surveys regarding their communication with an ex-romantic partner. The study empirically operationalizes these behaviors in the Post-Dissolution Relational Communication Index and reports on the factor structure, reliability, and convergent validity of the 2-factor solution produced. Both factors were significantly correlated with participants’ reports of communication satisfaction with a former relationship partner and the perceived seriousness of the relationship. In Study 2, self-reports from 151 participants who had experienced a divorce provided support for its use with divorced couples. A third factor was identified illustrating differences between nonmarital and marital ex-partners. Implications for postdissolution relationships and satisfaction with former partners are addressed. Furthermore, suggestions for practice are discussed.